Fountain-pen.



E. WlNNE.

FOUNTAIN. PEN. APPLICATION FILED MAY'ZQ, I914.

3 1M 11 Patented Apr. 1916.

@B l i1 ERNEST WINNE. OF NEW-YORK, N. Y.

FOUNTAIN-PEN.

To all whom it may concern:

Be it known that I, ERNEST WINNE, a

citizen of the United States, and a resident fountain pen opposite the one in which the of New York city, borough of Manhattan, in the county of New York and State of New York, have invented certain new and useful Improvements in Fountain-Pens, of

which the following is a'specification.

This invention relates to certam new and useful improvements in fountain pens, and.

particularly to that class of fountain pens which are provided with an automatic fill ing device composed of an ink reservoir and means for excluding the air from the ink reservoir so as to permit the ink to flow in.

The object of my invention is to provide a new and improved pen of this kind which is simple in construction, capableof being manipulated with least possible expenditure of time and effort, which does not require the detaching or preliminary shifting of any parts, which does not have any parts projecting 'from the. side of the barrel. that would in any way interfere with the convenient holding of the pen when in use, and-in the operation of which there is no tendency to force the pen point against the bottom of the ink well.

In the accompanying drawings in which like letters of reference indicate like parts in all the figures :Figure 1 is a longitudinal sectional elevation of that end part of a pen point is held, showing one embodiment ofmy invention. Fig. 2 is a side view of the cup shaped cam. Fig. 3 is a plan view of the same. Fig. 4 is a sectional view on the line a-a of Fig. 1.

The fountain penhas the usual barrel 1- made of hard rubber or similar substance,

and, in the embodiment shown, the barrel contains a softrubber ink reservoir 2 which can be compressed by means of a pressure ing held a short distance beyond the end of tilt the barrel 1 by the spring of the mechanism beneath.

The combination of the barrel 1, the elastic ink reservoir 2, the plunger 3 and the pressure bar mechanism it operates, I do not claim as my invention, as this is old and well known and one example of which pressure bar mechanism is shownin the Patent Specification of Letters Patent.

Application filed May 29, 1914:. Serial No. 841,796.

No. 787,152 issued April 11, 1905, to John screwing it on the end of thebarrel, and this extension piece is provided at its outer end with an inwardly extending bearing ring 5, which is screwed into the outer end of the extension 4.. A plug 7 fits snugly and movcap resting against the outer end of the tubular extension 4. In order to permit ofobtaining a better hold on the cap 8, it is preferably knurled or roughened as indi cated at 10. 1

From the cylindrical plug 7 two or more projections 11 extend laterally and rest upon the bearing ring 5. A cup-shaped cam piece 12 fits over the inner end of the plug 7 and is prevented from turning on the axis of the barrel by a pin 13 which ispassed through the walls of the tubular extension 4 and through slots 14 in the cup-shaped cam 12, so that this cup-shaped cam can move only lengthwise ofthe tubular extension 4 in which it is contained The closed end of the cup-shaped cam rests against the outer end of the plunger 3 and is normally held in place by the outward pressure of the plunger as above referredto. I The cup shaped cam is provided at the edges of its flanges or side walls with cam edges 15, of

which there are four in the embodiment shown, and these cam edges are pressed, by

the above mentioned pressure of the plunger tions 11. If now the cap 8 is turned axially,

the plug 7 and the projections 11 thereon travel with it, as indicated by the 'arrow 00' in Fig. 2,. and,..' acting on the cam edges of the cup shaped cam 12, force said cam 12 lengthwise of the plug as indi cated by the arrow 00 in Fig. 2, and thereby the plunger is forced in the same direction, which in 'turn causes the pressure bar to bear on the flexible ink reservoir, compresses the same more or less, and forces out some or all of the air that may be 1n said reservoir. When the projections 11 arrive at the highest points ofthe cam edges 15, they LltO 65 ably within the opening formed by the inner snap on and into the "open ends of the grooves 14 as indicated in Fig. 2, thus permittingthe elastic pressure of the plunger and mechanism beneath to show the cam in the inverse direction of the arrow m Fig. 2. By the expansion of the compressed reservoir, which is now possible, as the pressureexerted by the cam and the projections 11 on the plunger 3 has been removed, the air is rarefied in the flexible reservoir-and the exterior air pressure forces the ink,':into which the pen point has been dipped, into said reservoir and fills the same. Therefore .all that is necessary to fill the reservoir is to give the cap 8 a quarter turn axially of the barrelas thereby the cup-shaped cam 12 and the plunger 3 are first gradually forced toward the pen point, thereby forc ing .the air out of the flexible reservoir, and then the cup-shaped cam is released and thrown back and the reservoir fills with ink.

It will be observed that the means for filling the pen merely form a slight extension at the upper end of the barrel, and that all parts are substantially flush and in line,

andthat no parts project from theibilrrel of the penthat could be accidentally'operated,

v ters Patent is:

, the combination with a barrel, a compressi-" ble reservoir in the barrel, and -a plunger as the only way of filling the pen is bygiving the cap 8 a greater or less turn axially,

which requires the application of more or less. force. No parts must be first removed andjlateron replacedfor the purpose of filling the pen; neither is it necessary to reverse the movement, but merely to give the cap 8 a'quarter turn to the right until the mechanism snaps into itsnormal position. Also, as the operation of this mechanism requires no longitudinal pushing or pulling, there is 1 therefore no tendency to injure the pen .point by forcible contact with-the bottom of the ink well.

Having described my invention, what I claim as new and desire to secure by Let- 1L-In an automatic filling fountain pen,

- for action on said reservoir, .of a cam piece mounted in an end part of the barrel to move longitudinally and to act on said plunger, a member mounted to'rotate axially in the end of the pen -barrel and having means acting on said cam piece to move the same lengthwise of the barrel, said campiece having means to prevent rotation of the member in one direction, substantially as set forth. V

' 2. In an automatic filling fountain pen, the combination with a barrel, a yielding ink reservoir and a plunger for action on said reservoir, of a cup-shaped cam piece mounted in the end part ofthebarrel, a

reservoir and a plunger for action on said ..rese rvo1r, of acam piece ad acent to said plunger, which cam piece is mounted to move lengthwise of the barrel, a plug having projections'extending beneath the cam edges of the cam piece, a bearing ring in the barrel, on which-bearing ring the projections rest, substantially as set forth.

4. In an automatic filling fountain pen, the combination with a barrel, a yielding reservoir therein,a plunger mounted in the end of the barrel for action on said reservoir, of an extension piece screwed on the end of the barrel, an inwardly extending bearing ring on said extension piece, a cup shaped longitudinally movable cam piece in said extension-0f the barrel, 'a plug mounted rotatively in said extension,

and extending into the cam piece, lateral pro ections on said plug, which projections can act on the cam surface of the cam piece, .said plug-projecting beyond the outer end of the extension piece, substantially as set forth.

Signed at New York city, in the county .of New York and State of New York this xninth day of May,

ERNEST WINNIE.

' Witnesses A. TRENHAPT,

DAVID Camera. 

